261251062024 has 32 divisors (see below), whose sum is σ = 515887192800. Its totient is φ = 123688080000.

The previous prime is 261251061943. The next prime is 261251062049. The reversal of 261251062024 is 420260152162.

261251062024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130477 + ... + 734524.

It is an arithmetic number, because the mean of its divisors is an integer number (16121474775).

Almost surely, 2^261251062024 is an apocalyptic number.

It is an amenable number.

261251062024 is a deficient number, since it is larger than the sum of its proper divisors (254636130776).

261251062024 is a wasteful number, since it uses less digits than its factorization.

261251062024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867013 (or 867009 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 261251062024 in words is "two hundred sixty-one billion, two hundred fifty-one million, sixty-two thousand, twenty-four".